Quote from Monica in The One with Monica and Chandler's Wedding (Part 1)
Rachel: What are you doing, Mon? Monica: I'm making a list of all the things that are most likely to go wrong at the wedding. That way I can be prepared. Phoebe: What are they? Monica: Well, so far I have: My bridesmaids' dresses won't get picked up, My veil gets lost, or I'm missing my something blue. Rachel: Hey, those are all the things I'm responsible for. Monica: I had to go with the odds, Rach.